This is not the kind of speculation that good organizations do. Trading a guy because he "might" get hurt is a good way to continue floundering in the basement. Pitching is a violent act that takes it's toll on the human body no matter what your mechanics are. There's no proven method of throwing the ball that can prevent injury.

If someone blows Hahn away with a bevy of high quality prospects then so be it. Otherwise you'd have a hard time convincing me that keeping him is not our best option.

Whatever your personal opinion on injury projections, most teams (not just good teams) weigh injury projections incredibly carefully. Sale isn't a "might" get injured case. Sale is a "probably" will get injured case. You can disagree with that all you want, and you have the right to, but that doesn't change the fact that the "book" on Sale is that the risk is more on the expect it to happen side of things.